code: def head_module(body, num_filter, filter_in, name):
      if config.HEAD_MODULE == "SSH":
          return ssh_detection_module(body, num_filter, filter_in, name)
      else:
          return retina_detection_module(
              body, num_filter, filter_in, name
          )
  
file_path: insightface/detection/retinaface/rcnn/symbol/symbol_common.py
imports: import mxnet
  import mxnet.ndarray
  import numpy
  from rcnn.config import config
  from rcnn.PY_OP import rpn_fpn_ohem3, cascade_refine
label_desc: Use image node_id 8 for calling a global function with example usage: head_module(body, num_filter, filter_in, name) and returns: ssh_detection_module, retina_detection_module